i just bought a GPD Pocket 2 (core) and installed the provided MATE image from here.
Everything is working fine with so far with one exception:
The touchscreen is split in the middle and the sides are switched.
That means: if i touch the left side the cursor is on the right - and makes every movement correct, just on the right side of the screen - and vice versa.
There seems to be a similar problem in Windows, the solution was to manually edit the driver files (did try that myself and it worked!), but obviously that is not possible in Ubuntu - or at least my knowledge is too little to translate that solution to the linux drivers.
Does anyone have any idea how i can fix that? And no - xinput_calibrator is not the way to do it, it is not about calibration - it is about some weird split of the touchscreen in the middle.